Merge pull request #177 from YungSang/patch

Add a button to check updates
Remove updates.xml
Use SparkMD5 library

This library is used in twitter/bower and this is very fast.
http://jsperf.com/md5-shootout/7
Use semver library
Move MochiKit files to third_party/MochiKit
Fix invalid function call to versionComparator
version 2.0.79-dev starts
Add papaeye to developers
Fix invalid version number, '-dev' suffix
Unprefix linear-gradient
Unprefix transition
Fix transition's value in dashboard.css
Add unprefix user-select in "Photo - Capture" Extractor
Unprefix and update Notification

We should use latest W3C's Web Notifications,
instead of old Chromium's Desktop Notifications.
Update minimum_chrome_version from 23 to 26

Unprefix linear-gradient and transition are available in Chrome 26+.
Merge pull request #179 from syoichi/pr25-unprefix

Unprefix linear-gradient, transition, Notification
Add webRequestBlocking permission
Update unlimitedStorage permission
Add a bit wait to resize the QuickPostForm properly
Merge pull request #180 from YungSang/topic

Add a bit wait to resize the QuickPostForm properly